backend: Added remote statefile backend for AWS (i.e. s3)

Author: Aliabbask08

beginners/aws/backend.tf

@@ -0,0 +1,7 @@
+terraform{
+backend "s3" {
+bucket = "s3bucketName" // s3 bucket name created from AWS console
+key = "terraform.tfstate" // terraform state file
+region = "" // provide s3 bucket region
+}
+}